Ladislaus von Bortkiewicz

Japanese: ボルトキエビチ（英語表記）Ladislaus von Bortkiewicz

1868‐1931
Statistician and economist. Polish, born in Russia. Educated in Germany, he returned to Russia for a time, but got a teaching position at the University of Berlin, where he remained until his death. He was one of the few representative mathematical statisticians in Germany at the time. His contributions spanned the fields of demography, insurance, mathematical statistics, probability theory, and mathematical economics. His most famous discovery is that the number of times a phenomenon such as an accident occurs in a certain period of time follows a Poisson distribution, which he named the "law of small numbers."

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

1868‐1931
統計学者，経済学者。ロシア生れのポーランド人。ドイツで教育を受け，一時ロシアに帰ったが，ベルリン大学に教職を得，死ぬまでベルリンにとどまる。当時のドイツにおける数少ない数理統計学者の代表的人物であった。彼の貢献は人口統計学，保険学，数理統計学，確率論，数理経済学などの分野にわたる。なかでも有名なものは，事故のような現象が一定期間中に起こる回数がポアソン分布に従うことの発見で，これを彼は〈小数の法則〉と名づけた。

出典　株式会社平凡社世界大百科事典第２版について　情報

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